It's not too much to ask for. You pay the hotel fees and expect to receive a room that's been properly cleaned for the duration of your stay.

The moment you walk in the hotel room you scout the surroundings, making sure everything is cleaned and arranged properly. You scan the bed to see whether the sheets and pillows have a hair or a crease that'd suggest someone has slept on the same linens before. But how can you be sure?

Last year, Inside Edition's investigative team decided to test whether linens are changed before the next guest's arrival.

Their results will shock you!

The team checked into 9 hotel rooms in New York City, sprayed a harmless, fluorescent paint onto the bedsheet using a stencil that said, "I SLEPT HERE" or "YUCK."

The hotels on their hit-list included La Quinta Inns & Suites, Residence Inn, Marriott, and Candlewood & Suites.

Then they booked the rooms, under a new name, for the next day, and discovered that the sheets were not changed! When they turned off the lights and shone a UV light onto the sheets, the bright, bold stenciled letters appeared.

"Disgusting! These sheets are dirty," the reporter said to the managers. "This sheet hasn't been changed. Why weren't the sheets changed?"

Most of the hotel managers apologized for what they deemed to be a "simple mistake."

Here's the full video explaining what they uncovered:

The team later checked into Donald Trump's newest hotel in Washington D.C. and discovered that the bedsheets, pillow cases, and bathrobes were not washed between guests.

Do you think this is a trick in the hotel business or not?